Intersil Announces Industry's Most Efficient, Reliable and Easy-to-Use 3 Amp Synchronous Buck Regulators
June 09 2014 - 8:06AM
Intersil Corporation (Nasdaq:ISIL), a leading provider of
innovative power management and precision analog solutions, today
announced the ISL85003 and ISL85003A 3 Amp synchronous buck
regulators with integrated high-side and low-side MOSFETs. The new
ISL85003/3A buck regulators support an input voltage range of 4.5V
to 18V while delivering very efficient and continuous 3A current
for the latest generation of FPGAs from leading manufacturers for
high-end server, network communication and industrial process
control applications. The ISL85003/3A buck regulators are the most
efficient regulators of their kind, reducing power loss,
eliminating the need for fans or other cooling systems, improving
reliability and extending the life of end products. The ISL85003/3A
buck regulators are designed to deliver a very low resistance in a
triode region RDS(ON) with an optimized current mode controller to
further improve efficiency and reduce die temperatures, keeping
complex systems cooler and preventing product failures.
A photo accompanying this release is available at
http://www.globenewswire.com/newsroom/prs/?pkgid=25727
Many 12V infrastructure and industrial applications need a buck
regulator solution to step the system voltage down to 3.3V and
lower while delivering a continuous 3A current. These applications
require a high level of reliability and low power loss to extend
product life and reduce risk of system failure. Existing 3A
solutions have failed to meet the needs of these applications
because they frequently hit their temperature limits, which reduces
power management efficiency and product reliability.
Intersil specifically designed the new 3A synchronous buck
regulators to operate at and enable the highest efficiency, making
systems more robust with consistent and reliable performance. Based
on a proprietary high-performance power FET, the ISL85003/3A's
high-side FET runs at 65mΩ and the low-side RDS(ON) runs at 45mΩ.
This makes them the lowest RDS(ON) buck regulator solutions in the
market place with up to 95 percent efficiency. Greater efficiency
translates to lower die temperatures, keeping the system cooler and
reducing reliance on fans or other outside cooling systems. The
highly efficient FETs also enable the ISL85003/3A buck regulators
to work in applications that do not have expensive cooling
systems.
The ISL85003/3A buck regulators offer a light load mode that
allows systems to go into sleep mode when power requirements drop,
effectively consuming less power. Many applications are reducing
overall power consumption due to governmental regulations
worldwide. As a result, companies are redesigning their products to
meet these aggressive new requirements. In particular, the
industrial market has seen a wave of new power efficient products
that utilize energy saving design techniques such as sleep mode.
These products range from high-end server and programmable logic
controllers (PLCs) to smart home and smart factory applications
that require an extended battery charge. In many cases, the
microcontroller or FPGAs are put into sleep mode during down time.
For applications in which the load can vary from full operation to
low power state, having a light load mode feature improves the
overall system efficiency. In applications that do not require
light load mode, designers can easily disable the feature, reducing
the switching frequencies and simplifying design.
Unlike competing solutions, efficiency doesn't come at the cost
of switching frequency with Intersil's new buck regulators. The
ISL85003 buck regulator's switching frequency runs at 500KHz or can
be synchronized to a clock up to 2MHz. This high switching
frequency enables smaller inductors for the design and lower
ripple, further improving efficiency and ease of design.
The combination of Intersil's ISL9444 3-output synchronous buck
controller in conjunction with the ISL85003 3A synchronous buck
regulator gives system level designers the flexibility and support
needed to effectively deploy the latest generation multi-controller
core SoCs and FPGAs from leading manufacturers. These highly
flexible platforms can be found in a variety of industrial
applications, such as 6 axis robotic controllers, grid tied PV
inverters and medical imaging systems.
"From process technology to circuit design, Intersil is
investing in new ways to improve power efficiency in our customers'
most rigorous applications," said Mark Downing, senior vice
president of infrastructure and industrial power products at
Intersil. "The ISL85003/3A synchronous buck regulators are the most
efficient solutions in their class, giving designers a new level of
efficiency, flexibility and ease of design."
Features and Specifications
- Optimized for a wide range of industrial applications:
- Input voltage range from 4.5V to 18V
- Continuous 3A output current
- Output voltage adjustable from 0.8V +/-1%
- 500kHz switching frequency option
- External synchronization up to 2MHz
- High efficiency:
- Efficiency up to 95%
- Low RDS(ON) of 45mΩ and high-side FET of 65mΩ
- 500kHz switching frequency
- High reliability:
- Low internal temperature results in longer in-field life
cycle
- Positive and negative overcurrent protection
- Overvoltage and thermal protection
- Integrated BOOT diode with under voltage detection
Pricing and Availability
The ISL85003 and ISL85003A synchronous buck regulators are
available now, priced at $1.35 (USD) each in 1,000-piece
quantities. The ISL85003EVAL2Z and ISL85003EVALA2Z evaluation
boards are available for $75 (USD) each. In addition, a low-cost
demo board ISL85003DEMO1Z can be purchased for $20 (USD) each.
For more information on the ISL85003/3A synchronous buck
regulators, please visit:
http://www.intersil.com/products/ISL85003A.
For more information on the ISL85003EVAL2Z and ISL85003EVALA2Z
evaluation boards, please visit:
http://www.intersil.com/en/tools/reference-designs/isl85003-a-eval2z.html.
For more information on the ISL85003DEMO1Z demo board, please
visit:
http://www.intersil.com/en/tools/reference-designs/isl85003-a-demo1z.html.
About Intersil
Intersil Corporation is a leading provider of innovative power
management and precision analog solutions. The company's products
form the building blocks of increasingly intelligent, mobile and
power hungry electronics, enabling advances in power management to
improve efficiency and extend battery life. With a deep portfolio
of intellectual property and a rich history of design and process
innovation, Intersil is the trusted partner to leading companies in
some of the world's largest markets, including industrial and
infrastructure, mobile computing, automotive and aerospace. For
more information about Intersil, visit our website at
www.intersil.com.
Intersil and the Intersil logo are trademarks or
registered trademarks of Intersil Corporation. All other brands,
product names and marks are or may be trademarks or registered
trademarks used to identify products or services of their
respective owners.
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CONTACT: Media Contact
Shannon Pleasant
Intersil Corporation
(512) 382-8444
spleasant@intersil.com
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